KATZUNG'S BASIC AND
CLINICAL PHARMACOLOGY
16TH EDITION
• AUTHOR(S)TODD W.
VANDERAH
TEST BANK
,Question 1
A nurse is reviewing the results of a clinical trial involving a new
medication. Which statement best describes the purpose of a
randomized controlled trial during drug development?
A. To determine whether the medication can be manufactured
efficiently
B. To compare the medication with a control group while
minimizing bias
C. To establish the retail price of the medication
D. To identify marketing strategies before product approval
Correct Answer: B
Rationale:
Randomized controlled trials are designed to compare
outcomes between treatment and control groups while
reducing selection bias and confounding factors. Randomization
strengthens the validity of study results. Manufacturing
efficiency (Option A), pricing (Option C), and marketing
strategies (Option D) are not the primary objectives of
randomized controlled trials.
Question 2
A nurse is caring for a client who asks why one medication
works differently from another medication used for the same
,condition. Which concept should the nurse use when
responding?
A. Pharmacodynamics describes how drugs affect the body.
B. Pharmacokinetics describes how drugs produce therapeutic
effects.
C. Bioavailability determines whether a medication is legally
approved.
D. Therapeutic index measures medication cost-effectiveness.
Correct Answer: A
Rationale:
Pharmacodynamics explains the biochemical and physiological
effects of drugs on the body, including mechanisms of action.
Pharmacokinetics (Option B) describes how the body absorbs,
distributes, metabolizes, and eliminates drugs. Bioavailability
(Option C) refers to the fraction of an administered dose
reaching systemic circulation. The therapeutic index (Option D)
compares toxic and therapeutic doses, not cost-effectiveness.
Question 3
A client is prescribed an oral medication that undergoes
extensive first-pass metabolism. Which nursing implication is
most appropriate?
, A. Expect a larger proportion of the drug to reach systemic
circulation unchanged.
B. Recognize that the liver may significantly reduce the amount
of active drug reaching circulation.
C. Administer the medication only with intravenous fluids.
D. Expect the medication to have immediate onset regardless of
formulation.
Correct Answer: B
Rationale:
First-pass metabolism occurs primarily in the liver, where a
substantial portion of an orally administered drug may be
metabolized before reaching systemic circulation. This can
reduce bioavailability. Option A is incorrect because first-pass
metabolism decreases, rather than increases, the amount of
active drug. Options C and D are unrelated to first-pass
metabolism.
Question 4
A nurse is teaching a client about the difference between a
medication's generic name and its brand name. Which
statement by the client indicates understanding?
A. "The generic name is assigned by the manufacturer for
advertising."
CLINICAL PHARMACOLOGY
16TH EDITION
• AUTHOR(S)TODD W.
VANDERAH
TEST BANK
,Question 1
A nurse is reviewing the results of a clinical trial involving a new
medication. Which statement best describes the purpose of a
randomized controlled trial during drug development?
A. To determine whether the medication can be manufactured
efficiently
B. To compare the medication with a control group while
minimizing bias
C. To establish the retail price of the medication
D. To identify marketing strategies before product approval
Correct Answer: B
Rationale:
Randomized controlled trials are designed to compare
outcomes between treatment and control groups while
reducing selection bias and confounding factors. Randomization
strengthens the validity of study results. Manufacturing
efficiency (Option A), pricing (Option C), and marketing
strategies (Option D) are not the primary objectives of
randomized controlled trials.
Question 2
A nurse is caring for a client who asks why one medication
works differently from another medication used for the same
,condition. Which concept should the nurse use when
responding?
A. Pharmacodynamics describes how drugs affect the body.
B. Pharmacokinetics describes how drugs produce therapeutic
effects.
C. Bioavailability determines whether a medication is legally
approved.
D. Therapeutic index measures medication cost-effectiveness.
Correct Answer: A
Rationale:
Pharmacodynamics explains the biochemical and physiological
effects of drugs on the body, including mechanisms of action.
Pharmacokinetics (Option B) describes how the body absorbs,
distributes, metabolizes, and eliminates drugs. Bioavailability
(Option C) refers to the fraction of an administered dose
reaching systemic circulation. The therapeutic index (Option D)
compares toxic and therapeutic doses, not cost-effectiveness.
Question 3
A client is prescribed an oral medication that undergoes
extensive first-pass metabolism. Which nursing implication is
most appropriate?
, A. Expect a larger proportion of the drug to reach systemic
circulation unchanged.
B. Recognize that the liver may significantly reduce the amount
of active drug reaching circulation.
C. Administer the medication only with intravenous fluids.
D. Expect the medication to have immediate onset regardless of
formulation.
Correct Answer: B
Rationale:
First-pass metabolism occurs primarily in the liver, where a
substantial portion of an orally administered drug may be
metabolized before reaching systemic circulation. This can
reduce bioavailability. Option A is incorrect because first-pass
metabolism decreases, rather than increases, the amount of
active drug. Options C and D are unrelated to first-pass
metabolism.
Question 4
A nurse is teaching a client about the difference between a
medication's generic name and its brand name. Which
statement by the client indicates understanding?
A. "The generic name is assigned by the manufacturer for
advertising."
